Da Fuquan made a born that could make sounds of dragon. He blew the born by the deep pool near Mountain Nanshang.

大夫权造了一只能发出龙的叫声的号角，来到南山旁的深水潭边吹奏。

Hearing the sound, the three-legged turtle in the pool thought that people were to catch it and eat it. So it got so frightened that it shouted hysterically with its mouth wide open.

池中的三角鳖听到这种声音，以为人们将要来把自己抓住煮了吃，惊恐之下，力竭声嘶地张开大叫。

Da Fuquan thought this was sound of a real dragon. Then he went to find Gong Zhiqi and told him he wanted to learn the real sound of a dragon. Gong Zhiqi told him, “What you heard was not real sound of a dragon but sound of a three-legged turtle. The real sound of a dragon is rare to be heard by people. The sound made by your born is not that of a dragon, and now it is even worse for you to mistake the sound of a turtle to be that of a dragon! You just give up one false thing to take up another.”